7-Up

i) Cheat Codes

0 restore energy
F6 add COOL %
M can move freely, press again to restore
+ skip level
5 replay and change level of difficulity
F4 reduce energy to minimun
F10 time become 10 seconds

select level
pause the game (use 1 or END) and oress A-K to select level

iii) Crack

edit ZX.EXE
go sector 1 offset 269 - 271
change E8 34 EE to 90 90 90