Make it to Area 2 on Intermediate or higher difficulty.
Make it to the Area 3 on Intermediate or higher difficulty.
Make it to the Area 4 on Intermediate or higher difficulty.
Make it to the Area 5 on Intermediate or higher difficulty.
Make it to the Area 6 on Intermediate or higher difficulty.
Make it to the Area 7 on Intermediate or higher difficulty.
Make it to the Area 8 on Intermediate or higher difficulty.
Get 1 Million worth of points.
Get 4 Million worth of points.
Accumulate 9 extra lifes.
Complete the game on Intermediate or higher difficulty (no cheat)
Complete the game on Expert difficulty (no cheat)
Complete the game on Advanced or higher difficulty (no cheat)
Complete the game on Novice or higher difficulty (no cheat)
Complete the game on Intermediate or higher difficulty with bullet ricochet on!
Half way through on Expert difficulty.
Make it to the Area 8 on Novice or higher difficulty.
Make it to the Area 7 on Advanced or higher difficulty.
Make it to Area 2 on Novice or higher difficulty.
Make it to Area 3 on Advanced or higher difficulty.
Make it to Area 4 on Novice or higher difficulty.
Make it to the Area 5 on Advanced or higher difficulty.
Make it to the Area 6 on Novice or higher difficulty.