The Monkey
Use the arrow keys to move the monkey to the left and right, use the space key to jump.

The Constructor
Use the mouse to spawn blocks by clicking where you want the blocks.

Score
Points are gained by the player who is currently controlling the monkey when the monkey walks over the score boxes.

Switch
The game will randomly switch between who is controlling the monkey and who is controlling the constructor.

Goal
When you control the monkey your goal is to collect as many points as possible. When you control the constructor your goal is to place blocks to hinder the monkey from getting the score boxes.

Game Over
The screen is scrolling at a constant speed, so as the monkey you have to be careful so you don´t get stuck because then its game over. As the constructor you can try to trap the monkey but do it at your own peril since the switches are random you might trap yourself.