Completionist - Collect all 500 power orbs.
Die!!! - Destroy all enemies in the game,... including the recharging ones.
On reflection - Find the mirror.
Picture of health - Find all health boosts.
Raising the bar - Find all time extending power ups.
Shed some light - Find the torch.
Gravity of the situation - Find the rotation gateway gun.
Let's get started - Find the gateway gun.
Little and large - Find the resizing gateway gun.
Master of time - Find the time suit.
No assistance necessary - Complete the game with 500 power orbs.
The fun begins - Find the multi gun.
The high jump - Find all jump boosts.
The time machine - Find the time travel gateway gun.
The truth - Complete the game.
You again - Find all extra echo power ups.