With bitmaps, you need to tell it how wide/tall it is. Try putting a Data(H,W) before it that stores to the pic/gdb/etc.
.23 pix wide, 3 pix tall
Then use GDB1 in the Bitmap() command.
What I'm guessing the problem was without those coordinates and looking at that hex, it thought it should draw a sprite 255 ($FF) pixels high and 129 ($81) wide. Feel free to speculate what happened after that
Also, since it's an 8*8 sprite (I'm guessing? That looks right in 8*8 ) why not use Pt-On? 0.o
Edit: Added the coordinates in wabbit and it worked as it should.
However, it's kind of weird using enter as the quit key because it immediately continues again..maybe use a different key for that