AHA is a universal toolkit game whose primary innovation is that the density of rules and information are flexible.

A scene can be resolved in a single roll or take all night.

A character sheet can have as little as a single score, or full statistics for every piece of gear.

The game covers how to use this to serve dramatic needs, and it is also available as an accessibility concern.

The same system can be used whether you have lots of time and energy to prepare, or none at all.