s&box

23 July 2026

Added an optional Missions mode alongside the original Classic mode.
Added Bronze, Silver, Gold and Rainbow medals for all six packs.
Added mission goals for score, distance, collected hearts, near-misses and flawless song cycles.
Added collectible hearts and validated near-miss detection during Mission runs.
Added medal indicators and next-goal details to the pack selection screen.
Added an in-game Mission HUD showing distance, hearts, near-misses and flawless cycles.
Added persistent mission progression for every pack.
Added 10 new achievements for medals, hearts, near-misses and flawless performances.

Improved choreography synchronization during FPS drops, frame stalls and tabbing out.
Improved song-end handling so final choreography events execute before tracks restart.
Improved Cat Select previews so their effects remain synchronized with the music.
Improved scoring accuracy so scores no longer depend on the player’s framerate.
Improved tunnel generation consistency and reduced unnecessary Update work.
Improved local score and progression protection when stopping or force-closing the game.
Improved offline persistence for run-count and death-count achievements.
Improved menu text measurement, scaling and mouse hitbox accuracy.
Improved controller, keyboard and mouse input-release handling.
Improved directional pack navigation so packs are selected sequentially.
Reduced mission progress disk activity to prevent gameplay hitches.
Improved the Nyan negative-screen effect with a native GPU shader.
Improved camera transformations so sprites, scrolling layers and text respond consistently.
Improved post-processing so stage effects remain active behind Pause and Cat Select menus while interface elements stay clear.
Improved post-processing at ultrawide and non-16:9 resolutions by protecting the gameplay viewport and letterbox areas.
Preserved reduced-flash and reduced-shake accessibility behaviour across the restored effects.

Fixed Nyan Pack choreography running approximately 706 milliseconds behind the music.
Fixed Nyan Pack squash, stretch, rotation and flipping transformations occurring in the wrong order.
Fixed Nyan Pack rainbow and negative sequences becoming visually corrupted or difficult to play.
Fixed Nyan Pack rainbow-gradient rendering artifacts.
Fixed Nyan Pack final events occasionally being skipped when the audio reached the end.
Fixed Meat Pack screen reversals, horizontal and vertical flips, rotation, zoom and bounce choreography.
Fixed Meat Pack transformations not applying consistently to lyrics, text and scrolling layers.
Fixed Propaganda Pack blur effects not working correctly.
Fixed Propaganda Pack shake-blur, outline, circle, wave, zigzag, radial-blur and rotating-blur effects.
Fixed Propaganda Pack effects using incorrect timing and shader calculations.
Fixed stage effects incorrectly processing menu text and gameplay instructions.
Fixed paused gameplay backgrounds losing their active visual effects.
Fixed flashes being artificially limited in normal mode instead of using the original choreography values.
Fixed reduced-shake mode sometimes leaving flips, rotation, zoom or camera displacement active.
Fixed frame stalls permanently desynchronizing visual events from the music.
Fixed old timing debt carrying into a restarted song or different gameplay state.
Fixed repeated mouse confirmation during timing catch-up frames.
Fixed the pack carousel occasionally skipping directly over a pack when using directional controls.
Fixed medals being awarded from objectives completed across unrelated attempts; medal requirements must now be completed in one run.
Fixed changing packs from the Pause menu retaining an invalid cat from the previous pack.
Fixed run achievements sometimes counting menu entries instead of actual takeoffs.
Fixed local high scores occasionally being lost after stopping the S&box scene.
Fixed legacy online progression permanently giving up after a temporary service failure.
Fixed controls remaining active when another mapped keyboard, mouse or controller input was still held.
Fixed incorrect rendering scale and mouse desynchronization at lower resolutions.
Fixed stopped tunnel geometry being unnecessarily rebuilt every frame.
Fixed the Nyan negative effect causing incorrect colours, slow CPU processing and a first-use framerate hitch.
Fixed an S&box whitelist violation that could prevent the game from compiling in the editor.

DualSense D-pad menu navigation may remain unreliable depending on the active S&box controller mapping. The left stick, face buttons, keyboard and mouse remain supported.