Checkpoint 7 (April - December 2013 builds)

This checkpoint was probably a predecessor of Checkpoint 7, but its actual placement is not yet known. It may be scrapped, or just unused.

Other information

 * The original gameplay had a Multiball power-up. In modern versions, it was replaced with a Ball Frenzy power-up as a placeholder.
 * The first and second stage look like a river, which is the reason for Checkpoint 7's internal name, river. The third stage, however, bears a striking resemblance to Checkpoint 7 today. It's possible that when Checkpoint 7 was redesigned for version 0.8.0 as Checkpoint 5, they took the design from stage 3.
 * It's possible that this is the teaser for Checkpoint 7.