Balancing

This is a small balancing update for making the game more fun. In this Update I made it so that the teleporting crystals don't disappear when used, but blocked for around 5 seconds. Don't know what else to say, so here is the changelog:

Changes:

higher spawn rate for green slimes

red slimes are worth 100 points instead of 50

chests are now 50 points instead 10

teleporters now are blocked for 5 seconds instead of being destroyed when used.