Grafoon is an ‘Arcade Style Puzzle Shooter’ with a lot of classic elements like: Doors, Keys, Mines (including chain reactions), various walls with different behavior, laser barrier, nasty enemies and a lot more.

The main target is to pick up all Hobbels and bring them home to advance to the next map. Don’t touch the walls, they will destroy your ship. Touching enemies or enemy shots drain you ships energy. Collect green gems to increase your ships energy.

http://forum.gbadev.org/viewtopic.php?t=15601