Pixel Grower

Pixel Grower is like reverse tetris. You want your pixel tower to grow tall over the dotted line so you can move on to the next stage. The colored pixels will add to your health and the white ones will grow your tower but make you lose health. The yellow pixel creates a horizontal line, the pink pixel creates a large box, and the blue pixel creates a cross shape. The less time it takes to put the tower to the top the better. Every level gets harder and harder as the top becomes further away and the pixels drop faster. How many levels can you make it in Pixel Grower?