Do not let the balloons get at the end of the track. The cat costs 20 and it shoots a bullet at the balloons. The bat costs 100 and it flies around and shoots bullets in all directions. The penguin costs 50 and it shoots bullets to make the balloons slower. The spikes make traps on the road and do double the damage. The bomber shoots bombs and they explode the enemy’s within the area, . Click on the characters to be able to upgrade them. The maximum is 2 upgrades. The way to win is to get to level 25, but if you want to you can go even longer but it will glitch a bit.