Every theme now has the same five kinds of map, so you always know what you’re in for: a flat floor with platforms, the same with a physics part or two, one with gaps and pits to fall through, a medium map with two or three physics parts, and a large map with three or four where the camera follows the fighters. That’s 60 maps across 12 themes. Space gets a large map of its own: Deep Space, a wrecked station drifting in low gravity. Maps that didn’t fit the pattern, including the Forest maps, are out of the rotation for now.

“That’s you” aura: it reaches further out round you, little blue bolts of electricity crackle through it, and it lasts longer - 7 seconds into a round, 6 after a respawn, and now when you first join a game in progress too.

Crosshair: a cleaner split ring in your colour with a dot in the middle, outlined in black on light maps and in white on dark ones.

Weapon card: much smaller - the weapon’s name and ammo on one line and one bar under it (your ammo, or your guard when you’re bare-handed). With C4 out it just tells you how to blow it. Spring shoes, the reflector and the jetpack sit beside it as small matching stickers.

ESC menu: a wider, shorter page - Resume and Profile on top, the match and help on the left, your settings on the right, and Rate, Suggest and Leave along the bottom.

Lobby settings: the page sits lower on the screen and is wider, so the long Weapons page takes less room, and the tabs along the top stay in the same spot on every page.

Traps and charges last the round: bear traps and banana peels now stay until the round ends, like landmines (they used to go after 30 seconds). C4 stays put if you die or throw the remote away, and any explosion that reaches a charge sets it off, so they chain. Up to 32 landmines and 32 traps at once.

150 health: everyone now starts with 150 HP by default (Big boy mode 300, Small boy mode 100). A saved lobby still on the old 100 moves up to 150 once; any other value you picked stays.

12% less gravity: jumps go higher and float a little longer, so it’s harder to fall off the map. Bots plan their jumps with the new gravity.

Melee weapons never run out: swords, bats, hammers, katanas, the spear, chainsaw and the rest have no swing count any more - the weapon card shows an infinity sign. You can still throw them.

Throw it away, pick it up full: any weapon or gadget you throw comes back with full ammo, swings or charges when you pick it up again, not just guns.

C4, glue and landmines last the round: they don’t fizzle out, dry up or vanish any more - they stay put until the round ends, then they’re cleared. (Up to 40 glue patches and 16 landmines at once; past that the oldest goes.)

Sniper: much less recoil - it shoves you back less than half as far, and the barrel barely climbs.

Ricochet: a thicker beam.

Shop Vac: does a quarter less damage, both the suction and the blast out the back.

Spring Shoes: a mid-air spring now launches you up and forward the way you’re holding (or facing, if you’re not holding a direction), instead of wherever your crosshair happened to be.

Weapon tips stay on screen longer when you pick something up.

Smoother camera at the top of the map: no more snapping wide and back when someone goes up past the top, or jumps around under the player cards - the camera eases in and out instead.

New chat lines slide in.

Guns that run out of ammo vanish in a puff instead of hanging around. You can only throw a weapon while it still has ammo - so throw it before it’s empty.

Close throws are gentle: a weapon tossed near your feet only drops there and is soon ready to pick up again.

Deagle: now a real .50 hand cannon - much louder and heavier, 48 damage, and a wrist kick so big that quick shots throw your aim right over to the other side of the screen, or down at your feet.

Gravity Gun (was the Anti-Gravity Gun): instead of floating people away, every hit makes them heavier. Stack it up and they can barely jump. An iron ball on a chain grows at their ankle.

Gold God Gun: fires a big golden God bullet with a short streak instead of a beam.

Crossbow: every bolt is fire-tipped and sets whoever it hits alight.

Time Gun: shoot a wall or the floor and the bubble of stopped time opens right there. Time bubbles now freeze the map’s machinery too - windmills, wheels, stamps, conveyors, seesaws, trees and dominoes stop dead and carry on afterwards.

Dominoes are real physics now: walk into one, punch it, shoot it or blow it up from either side and it tips over and knocks the next one down. The row stands back up after a few seconds.

Sticky Bomb is now Semtex: it beeps faster and faster before it goes off. Like C4, it sticks right where it hits someone - their arm, leg, chest or head - and stays on that limb; one that lands next to someone’s feet stays on the floor.

Boomerang looks like a proper boomerang when it’s lying on the floor.

Swap Ray has its own look: teal and orange, with arrows pointing both ways.

Controls list starts with the mouse buttons, then jumping (hold for a longer jump, and the jetpack note), then the rest.

Player cards have a new look: a torn strip of paper with a round portrait badge, a highlighted name and a slanted health bar, in both light and dark themes.

Things that stick go along for the ride: Semtex, C4, glue, Molotov fire, landmines, banana peels, bear traps, arrows and bolts now stick to the moving parts of physics arenas - seesaws, windmill sails, the ship’s deck, wheel gondolas, dominoes - and to the sliding platforms on the classic maps, and move with them. If a part drops away, they fall with it.

The whole interface is drawn on paper now, to match the stick figures and the doodle maps:

Title screen: the menu is an index card of paper buttons, and Start a game / Join a game open as paper cards with a marker arrow pointing at them. Start a game opens and closes like a toggle, and starts closed.

Lobby settings: a ruled notebook page with big coloured divider tabs for Match, Players, Weapons, Maps and Bots. Each page is tinted to match its tab and is only as tall as what’s on it.

ESC menu: a taped notebook page with pencil sliders and tick boxes, beside a “Your stick” index card and an Invite friends card pinned on.

Locker: a notebook page with divider tabs, every item on its own little card (locked ones pencilled, achievement rewards on green sticky notes, legendaries on gold paper), and your stick shown in a polaroid.

Profile and Achievements: sheets of notebook paper, with the daily challenges as a to-do list you tick off. The controls panel is paper too.

In game: round banners hit like a fighting game: big comic lettering on a brush stroke of ink (in the winner’s colour when someone takes the round), FIGHT! on a red impact burst, a gold burst for the match winner, and the 3-2-1 countdown slams onto jagged paper bursts with speed lines. The kill feed is strips of paper, notices are sticky notes, and the weapon card, name tags, chat and scoreboard are paper too.

Between rounds: the map vote is three index cards with a sketch of each map and the votes as tally marks, and level-ups and achievements pop up as sticky notes.

Not all white: menus come in pale stationery colours: a lilac title menu, peach and blue Start and Join cards, a blue pause menu, a mint Locker, pink Achievements, a manila scoreboard and a yellow legal pad for the chat.

Typing boxes (chat, lobby name, suggestions) are paper too.

Bots aim like their difficulty: easy bots swing their arm slowly and wobble all over the place, normal bots are a bit off, hard bots are quick and steady.

Deagle and Gold God Gun: hardly push you back any more. Instead they have wrist recoil: every shot kicks the barrel up, it climbs as you keep firing, and it settles back down to your crosshair when you stop.

Cyber Katana swings much faster (a little less damage per hit).

Katanas are held the right way round, with the curve facing away from you.

Shop Vac: sucks people in and blasts them out the back the other way. Big swirling suction lines show where it’s pulling, so it’s nothing like the Leaf Blower.

Nail Gun: bigger, brighter nails with a streak.

Meteor Staff: held upright like a staff. The meteor appears high in the sky and falls straight onto the spot you clicked.

Chat: long messages wrap onto the next line instead of being cut off, in the chat and in speech bubbles. When you’re knocked out, your bubble hangs over your body, and if your body is off the screen it pops up at the nearest edge, pointing your way, without covering the chat or your weapon card.

New sounds: cartoony punches, knockouts, jumps, landings and whooshes; pencil-tap menu clicks, page flips, a marker scribble and pop when you equip something, and a dice rattle for Randomize.

Riot Shield: held up in front of you, covering your body. Attacking thrusts it out and shoves away anyone in front of it.

Meteor Staff: click a spot and a meteor comes down from the sky onto it. A red ring marks where it will land.

Gold God Gun: now a direct energy weapon that fires a golden impulse beam instead of a rocket. It fires faster, has infinite ammo and kicks much harder.

Deagle: much more recoil.

Spring Shoes: now worn on your feet when you pick them up, like the jetpack goes on your back, so you keep your weapon. Your jumps are bouncier, and pressing jump again in mid-air springs you hard wherever you’re aiming. They have 8 springs (shown next to your weapon) and pop off when they’re used up.

Railgun: big flashes and sparks at every point the beam touches, on walls and on every person it goes through.

Banana Peel: slips you along the floor instead of launching you upwards.

Bullet reflects: sending a bullet back plays the same parry sound as deflecting a punch.

Morning Star: the spiked ball kills instantly.

Death walls: the walls on the left and right are further out.

Camera: when someone is up at the top of the map, the camera moves up so the player cards don’t hide them, and shows less of the bottom if nobody is down there. It only follows people a little way above the top of the map: anyone flung higher shows as an arrow in their colour at the top of the screen.

Backgrounds cleaned up so nothing behind the arena looks like a platform: no more floating trees or stumps under Treehouse, Windmill Hill and Timber!; no rocks, buoys or water tanks next to the platforms; no mugs or book piles behind the real ones on the desk maps; the moon and space rocks moved further back; the pagodas moved off to the sides.

Bots notice when they’ve stopped moving, give up on what they were going for and get going again.

Giant Fish and Anvil have been removed.

If the host leaves, the next player to have joined takes over. The game now carries on with the same settings and tells everyone who the new host is.

Melee reach – punches, kicks and melee weapons reach exactly as far as they look and scale with player size

Rockets – a direct hit explodes on the target for the full 100 damage

Minigun – bullets are now fat white-hot slugs racing down the tracer

Teleport Gun – blinks you through one-way and thin platforms and lands you on top

Gold God Gun – now fires a single explosive God shell instead of a laser, with a deep cannon boom

Weapon and map lists – fit all 39 weapons and items and all 50 maps

Health bars – show your HP number, with splits that follow the lobby's max health

Difficulty – easy bots aim wide and react slowly, while hard bots aim true, guard, dodge rockets, lead moving targets and go prone under fire

New tricks – bots grab Extra Lives, swing the Cyber Katana at incoming fire, and ride and avoid the moving parts on the physics arenas