Plain Only Up! requires climbing with tricky timing and precision, i think the physics are unpredictable making every jump suspect. You face annoying retries and slip-ups while dodging moving objects.
Step by moving your character with tricky timing, climb endless stacks and dodge moving objects.
The controls are fairly neat but sometimes wonky. The physics are unpredictable, making every jump suspect.
Most important is learning the physics for tricky timing. You keep pushing for that next jump.
Q: What are the controls? A: Not stated
Q: What is the objective? A: Climb endless stacks and dodge moving objects
Q: Are there any stated features? A: Not stated
Q: What is the main mechanic? A: Tricky timing and precision with unpredictable physics