One room instead of a floor
Greed mode replaces the floor with a single arena. Waves of enemies spawn in the same space.
There is no map to route and no secret room to hunt. The mode is about surviving the waves.
The wave loop
Each wave of enemies must be cleared before the next. Clearing a wave can drop coins and hearts.
The mode rewards fast clears. The sooner you end a wave, the sooner the coins pile up.
The shop is the run
A shop sits beside the arena and sells items. The money you earn in waves becomes your build.
Buying early can snowball a run. Each purchase adds power that makes later waves easier.
The button and the boss
A button lets you spawn a wave or an extra boss. Using it is a risk for a reward.
After the waves you face a boss to leave. The fight tests the build you bought rather than the path you took.
Next: Unlocking progression and How a run works.