Slime seeds

A bag of slime seeds. This'll cause more slimes to appear.

Accelerates Slime Growth

By changing the diet of the slimes you can make baby slimes grow up faster.

Slime Turbines

By integrating turbines inside of slimes, you can increase the rate at which each slime charges the crystals.

Slime Fertility

Slimes are naturally slow to mate, leaving very few left over wave to wave. More fecund slimes allow for more slimes already at your crystal at the start of the wave.

Slippery Slime

Increasing how slippery the slimes are allow them to move across the stage more quickly.

Hard Hats

Hard hats can protect slimes from impacts.

Focused Spawning

The seeds were planted more precisely, so that slimes spawn more closely to the crystal.

Rocks

Adding rocks to the fortress makes it heavier, which makes it fall more forcefully.