Move the launcher to the left using the left arrow key to make the monkey spring to the right. Don't hit the tree. Get the bananas. The launch speed can be changed by pressing the up or down arrows, which makes the monkey go higher or lower. Press space to launch.
Experiment to figure out the best strategies to use. Tell me how many launches it took and tell me what to improve if you have any suggestions in the comments or on my profile. Thanks for playing and reading this and have fun!