I'm going to try to maintain this as a document listing things I need to remember to do!
###Objectives
- Travel X distance
- Perform X clockwise flips within Ys
- Don't crash against any rocks
- Pacifist - Score X points without destroying any rocks
- Collect only fuel the entire run
- Ray of hope - Collect a health pack when you're running low
- Score of X or more
- Destroyer of rocks - destroy 500 rocks in total
Player would get a bonus for doing all available objectives (most likely 3 at a time) in one go
###Other
- Screenshake (done)
- White flashes on jetpack and on explosions (done)
- Remember to use loader.images instead of creating new images
- Secret achievement (certain locations)