Space Invaders Extreme achievements

Achieve a "B" rank or better on stage 1-A.

Destroy 10 enemies of the same shape and achieve the Same Shape bonus.

Destroy a complete column of enemies and achieve the Column Bonus.

Destroy enough enemies and raise your Rate by 1.

Get a Rainbow Bonus.

Destroy a row of enemies and achieve the Row Bonus.

Score enough points and raise your level by 1.

Destroy 10 enemies of the same colour and achieve the Same Colour bonus.

Defeated the first Boss Invader.

Defeated a wave of invaders without missing a shot.

Destroyed at least 21 invaders in a row.

Achieve an "S" rank on stage 5-C.