Find 8 bubble makers.

Defeat the Dropship at Challax.

Upgrade any weapon three times.

Defeat Mungo using only your wrench.

Destroy 5 displays in the Kalidon Mechanoid Factory.

Obtain the Sprout-O-Matic gadget.

Collect a piece of armor.

Close 2 blinds in one go.

Find 8 paper planes.

Find 8 stickers.

Switch Aliens 50 times or less to reach the crane.

Break 30 barrels in one go.

Don't fall on the conveyor belt before you save Jessie.