Agreed it's doable BUT ONLY if you visit the secret room for invincibility which I always felt was 'cheating' and takes all the skill (and fun) away, because you go there fairly early then zip through all the later bits untouched...
Viewing post in Amstrad CPC - Saboteur 2 mod comments
Mission 9 is all about speedrunning, it's hard enough even with infinite energy. Just try to do it that way, it's still hard, but it's a different type of gameplay. It's not about fighting, it's about avoiding fights and knowing fast routes. But I can build a special version for you with 999 seconds if you like :)