Left/Right arrow keys to make Repton walk. Use the scale slider to change size. (but click the stage after to return focus to keys)
Credit to @colinmacc for the (32x32) bitmap character. (from Repton Classic) This is a 1 costume (1 pixel) animation. The costume gets stamped, once for each visible costume pixel. Frames are stored as pseudo-bitmaps so the left pose is a manipulated view of the right pose. In this project, 6 stored frames give the full 11 poses that I use.