Tallman Run is a fun running game. Your task is to grow taller and run fast to the finish line. Run through the green portal, and take the size increase potion to have a strong body. Collect rockets to grow to your size. Collect diamonds, use trampolines to sneak through barriers, and jump over enemies.
The game has a lot of pitfalls, be careful. When you reach the finish line, lose weight and height gradually, then finish your boss with a powerful blow.