Speed Limit (UP)

This achievement takes place on level 7 - "turn the tide" and level 8 "aviary" and just dont use your missiles for the entire of both levels, you will need to use 1 missile at the end to kill the red jet for story progression so just keep your fingers off the LT button also you can die as many times as you want, if you accidentally use a missile then back out to the menu and load up level 7 again