Sea Dragon

Wayne Westmoreland & Terry Gilman, 1982 · the original TRS-80 binary, emulated

Keys ← → move · ↑ ↓ rise and dive · Space torpedo · Enter missile and to start · 1/2 players · 0/1 skill.
This is not a reconstruction. The 1982 load module is in the page and a Z80 runs it, so the cavern, the enemies, the physics, the scoring, the sound and the timing are all the original code. Block graphics are exact. Text is drawn from a 5x7 character generator: picking Model I also folds lowercase to capitals, the way a machine without the lowercase mod displayed it.