atariready

How come when I play Kool-Aid Man on Stella, it doesn't work right? Kool-Aid Man bounces around in the upper-left corner and cannot be moved. Why? Thanks.

I just downloaded Visual bB and am new to Batari programming. I am going through the tutorial "How To Make Atari Games" on Youtube. When I add player0x=50:player0y=50 in the code and hit enter, it doesn't indent. And when I try to compile it, it doesn't work. Why? What am I doing wrong? Thanks.