level = 0
while true do
    emu.frameadvance();
    i = joypad.getimmediate()
    if i["P1 Select"] and (prevstate ~= i["P1 Select"]) then --detect when select is _pressed_
        savestate.loadslot(1)
        level = level + 1
    end
    memory.write_u8(0x0031,level)
    memory.write_u8(0x005D,0xFE)
    for i=0,7 do --hax infinite energy and weapons
        memory.write_u8(0x006A+i,0x1C)
    end
    gui.drawText(0,8,"Current Level: " .. bizstring.hex(level))
    prevstate = i["P1 Select"]
end