Complete any wave firing only once and without dying. [Shield] and [Time Warp] off.
Complete 5 waves in 90s or less. [Shield] and [Time Warp] off.
Reach 1200 points or more without firing once.
Survive 50 seconds in the first wave on Difficulty 3. All powers off.
Travel a distance of 5000 units in a single life (percentage bar available). All powers off.
Complete a Wave without ever going left or dying. [Penetrating Fire] off.
Complete a Wave without ever missing a shot. [Penetrating Fire] off.
Get 150 kills in a single life. [Penetrating Fire] off.
Complete 6 waves without dying once, with [Penetrating Fire] off.
Complete 6 waves without dying once, on Difficulty 5 or higher.
Complete Wave 10 on Difficulty 5 or higher.
Complete Wave 20 on Difficulty 5 or higher.
Complete Wave 5 on Difficulty 5 or higher with [Penetrating Fire] off.
Complete Wave 10 on Difficulty 5 or higher with [Penetrating Fire] off.
Complete Wave 8 on Difficulty 9.
Complete Wave 16 on Difficulty 9.
Complete Wave 1 on Difficulty 9 with [Shield], [Time Warp] and [Penetrating Fire] off.
Complete Wave 10.
Complete Wave 20.
Complete Wave 30.
Complete Wave 10 with [Penetrating Fire] off.
Complete Wave 20 with [Penetrating Fire] off.
Complete Wave 6 with [Shield], [Time Warp] and [Penetrating Fire] off.
Complete Wave 12 with [Shield], [Time Warp] and [Penetrating Fire] off.