Continuing is pointless. If you die - it's probably because your weapons are inadequate. But you lose all your money and most your ammo when you die. So you can't buy new weapons. So you die again. Because your weapons are inadequate. But you can't upgrade them. Because you died. See the vicious circle?
My only complaint is that repairs shouldn't cost more than weapons. Lower the repair costs - it ends up that you can't upgrade your ship because you're spending everything on repairs
Tower selection needs work. It's quite difficult to select your towers. The entire square of the tower doesn't select, and sometimes it doesn't select if you click any portion of the tower. This also happens when attempting to purchase towers.
A bit more information would be useful - how much do upgrades cost? What are the tower stats? I can't seem to find a way to repair towers other than upgrading them. And how are they getting damaged?
The controls are horrible. Missiles should either be automatic, or something that doesn't require you to have space the same hand that's maneuvering you pressing another button simultaneously. Makes them useless.
Another suggestion: switch the prices of the 750 fire-laser tower and the sniper tower. Sniper tower is more effective than the former, so should be the more expensive of the two.
This looks like it has a lot of potential. I like the variety in towers. Needs: Life readout. Upgrades. Tower selling. Global upgrades (like skill points or some such between levels that effect your tower stats or money production). Keep at it! I'm looking forward to your final version.
Why did this game get badges when there are so many much, much better games out there, that have been on Kong for MONTHS, and STILL don't have badges? 1/5