Fixes in the newest version of my LD39 Entry:

Audio -

1) everything less loud

2) Music! I composed a simple song tonight and added it as background. It's a little less than a minute and you can last for at least 2 and probably more, so I'll look at adding another so things aren't as repetitive.

Background: The odd movement was a stray x+ instead of x-, background doing what I wanted now

Visual: I made both thrusters appear to aid / help explain the faster diagonal movement

Stealer

1) It now drops out of the sky when out of energy (personally made me laugh 1st time it happened)

2) stealer respawns in between 2 and 4 seconds, not just 2 as was set before

3) there's a quarter second pause when new energy appears before the stealer goes for the energy. Too much longer and you'll always beat it to the energy

Plans: Make energy appear differently (not just random). Add more music. Make better try again button. Clean up text.

Play the HTML 5 version