Going Up
Climb the spike-lined tower. Five levels use the same route — each one dials up the difficulty.
From the main menu, choose a level — each tower is the same climb, but higher levels add wider gaps, narrower ledges, meaner spikes, and red spikes sooner. Arrow keys or A/D to move, Space or W or ↑ to jump. P or Esc pauses; Esc on the level screen goes back.