poorly made
The cannons' power is just wrong. The guy doesn't go far enough, so it took me 10 tries just to figure out the right angle to get into another one. It would be a good idea to add in a power bar so that we could set the strength, and therefore the distance. Also remove spinning cannons, there's no point in them since you can still turn them, and even if you couldn't the wait would be pointless.The graphics are rather bad, it looks like you through them all together in about 15 minutes, spend a little longer on them.
Overall, it seems you just didn't spend enough time on this. 2 months? you've got to be joking.