Complete stage 5 (start from level 1 required)
Complete stage 10 (start from level 1 required)
Complete stage 20 (start from level 1 required)
Complete stage 30 (start from level 1 required)
Complete stage 40 (start from level 1 required)
Complete stage 50 and complete the game (start from level 1 required)
Stage 1-10 no deaths (start at level 1)
Stage 11-20 no deaths (start at level 11)
Stage 21-30 no deaths (start at level 21)
Stage 31-40 no deaths (start at level 31)
Stage 41-50 no deaths (start wherever you like)
Destroy 200 level 1 tanks
Destroy 175 level 2 tanks
Destroy 150 level 3 tanks
Destroy 125 level 4 tanks
Destroy your base walls, do not rebuild them before destroying enemy tanks, and finish level 50
Upgrade your tank to level 2
Upgrade your tank to level 3
Upgrade your tank to level 4
Get the Grenade item
Reinforce Base with a steel wall
Get a 1-UP
Become invincible
Get the time stopper