There are 24 achievements, not only 20, the TIME ATTACK platinum medals count as achievements! Slayer – Kill 300 enemies, Massacre – Kill 1000 enemies, Bonus Addict – Collect 100 Bonuses, Collector – Bought 5 ships, Loaded – Earned 100,000 gold, Firepower – Owned all 3 types of missiles, Bankrupt – Lost 50,000 gold Game, Master – Defeated 3 bosses, Pwned – Triple kill, Starter – Killed 50 enemies, Risk Taker – almost dying 3 times in 1 round, Elite – Killed 10 bosses, Millionaire – Collect 1,000,000 gold, Master Collector – Buy all ships, Unknown – Random Achievement (I got repeating level 12 5 times) Masked Destruction – Used 1,000 missiles, Insanity – Crash into a boss, Kamakazi – Killed an enemy by crashing into it, Ultimate – 5 Million Gold 5000 Enemies, Victorious – beating the last boss KEEP COMMENT ALIVE! sorry people i hate chain messagin, but i found this extremely helpful
