Here's a slight update screenwise, but a large update gamewise.
Below the energy meter is a bar. When you're not at full energy, this bar fills up (slowly, though you can upgrade it), and when it's full, it restores one block of energy.
Also added is a working score system that I'm pretty proud of, especially since it's sprite based and not the crappy default Game Maker scoring system.
And finally, there are now three enemy types so far.
1. Flies forward, moving up and down quickly to confuse the player. (top)
2. Charges up, and dashes forward at high speeds. (bottom)
3. Flies forward a short distance, drops a bomb (with about a 32 x 32 size explosion), and then flies off. (not pictured)
It won't be long before I'll have to think up my first boss. And then an upgrade shop between levels.