Super NES

Boots the open homebrew game "Space Rescue Squad" on an emulated Super Nintendo (WDC 65C816). Click the screen, then play with the on-screen gamepad or the keyboard (arrow keys move, Z = B, X = A, A = Y, S = X, Enter = Start, Shift = Select). Add ?debug, or click Debug, to read the live 65C816 registers (A X Y SP D DBR PBR PC P + E), read the CPU bus / WRAM / VRAM / CGRAM / OAM / APU RAM side-effect-free, single-step one instruction at a time, and set execution breakpoints or write watchpoints.