The bike is out the left window in the room above where the boss is. Careful though. If I remember, I think there is a mine at the bottom.

ty so much

This is the worst guide I've ever seen.

What's this? if there was a video, it isn't there anymore

where?

If you get damaged, no matter what you do, you get the sad ending. You have to kill the boss and get to the bike without getting damaged. If you do that, you got the happy ending. You'll know because the picture won't be torn.

i've just beated the game in new game plus and i didn't get the achievement for it... do i need to avoid being damaged? i was damaged but made it in time to the bike... credits rolled but no achievement...

Just so people know, the alarm is never sounded in the final level so it cannot act as a fail state in New Game +