TigerCake is going to be some form of abstract styled first person shooter. May include some humor, so things aren't too serious.
You can shoot both bouncy/remote and sticky/proximity bombs.
Remote bombs have red lights. Proximity bombs have green lights.
If a player or monster gets hit by a proximity bomb, the bomb sticks around for 5 seconds, then explodes. The melee weapon can be used to try unsticky it/throw away.
If it hits a wall, then it spawns a trigger field for detecting player or monster getting close.. and then explode if something detected.