I like it, but...
Still had a few things I disliked about #1
1. Why does fuel run out in the air? If i was cannoning around in a tank, I'd take my foot off the ignition to save fuel.
2. Too few enemies or they don't shoot soon enough. This is especially a problem with levels that have gaps in them.
I also noticed a problem with the final boss:
He always starts by either using like 20 missiles, or uses the laser like 5 times in a row. No variation other than those two, and the lasers just get frustrating.
Also, did you REALLY have to go all Star Wars on the ending like that? So freaking unoriginal.
Also, you took the tanks out! AGH.