Click Green Flag. Press space to see alicecoehoorn's hyperdrive. Press H to see my modified hyperdrive. Pressing H a second time after the first display has ended will cause about a 5 second delay to the start of the display. Perhaps the cleanup of clone deletion gets in the way of clone creation when the count of clones is at the 300 clone limit.
Clone test based on this post reporting a bug with cloning: https://scratch.mit.edu/discuss/topic/341284/ The scripts are from the above post and written by alicecoehoorn.