In Summer Camp, you play Maximus Mouse. The flag of Wottadump has gone missing, 24 hours before the start of the season. Maximus must find a replacement, and decides to get the one on the moon.
The game is a platform game, made up of four levels, each made up of a collection of inter-connected screens. There are a variety of objects to collect, but the aim on each level is to collect the parts (found in ACME crates) of a vehicle to get to the next one.
When all the parts are in place, there is a sub-game where the vehicle is constructed, although this is only for bonus points.