This one uses a single buffer screen. Draw on the portion not being displayed. It also has an interesting way to manage objects to keep the game moving, but f

This one uses a single buffer screen. Draw on the portion not being displayed. It also has an interesting way to manage objects to keep the game moving, but for a few slowdown events that actually make the game great. When there is too much to do, baddies are simply moved to an inactive region. Players in the moment hardly notice, but bystanders do. Finally, each baddie is its own little process. They have their own behaviors, and can be spawned, moved, etc. in simple, fast ways that do not break the experience. Others have said this game feels raw, intense! I feel these elements all contribute to that feeling. It is a bitmap game, no hardware sprites, and Jarvis basically aimed to kick the players ass! This game does that. At 1Mhz, this game is a work of art, IMHO. So many good choices and balancing of resources.