Career - every run's score is career XP. 15 ranks from Intern to Retired, each one unlocks something. Players from before start at the rank they've earned

XP bonuses - the first build of the day earns double XP, daily build runs +50%

git rebase - reroll a commit offer (2 per build at Co-founder)

git revert - take a commit out of the pool for the rest of the build

Pick your stack - choose your starting weapon, the full stack at CTO

Crunch mode - tougher enemies for up to x2.2 score, three levels

Dress codes - a black hoodie, and a golden playtester for whoever retires

Code review - enemies at full health take +40% damage

Pair programming - a second playtester joins your run

Hotfix - once per wave, dropping below 30% HP heals you and knocks enemies back

Rubber duck - every few seconds a rubber duck flies at the toughest enemy and explains it to death