Hm, I'll have to see what I can do, the player sprite is small to give you a lot of room to maneuver and I'm not a big fan of hitboxes that are significantly smaller than what you can see on the screen (there are a few pixels shaved off in every direction but it's no modern shmup level discrepancy). I always just assumed the prominent trail of beams emanating from the player sprite makes it easy to find on the screen.
So I’ve played this again tonight and this time my lighting was better…when I played it first, the light was ok but not ideal and I think that’s what caused my problems.
Playing it under brighter light today I could see my player just fine :) I really like how careful you have to be with the controls, or else you go bouncing round the screen madly!