I have up to 10 for the achievement but how do I get up to 15 for the final achievement?

I have some basic tips that may help. Besides that, it's just luck and practice! Best of luck. :)

• Click the key in the bottom-right corner - using a mouse makes the game much, much easier.
• Spray! The game isn't about accuracy so click from left to right to create a wide burst of cannonballs. Some will find their mark and some won't, but it will save you time and energy.
• More accurate spray - Shoot a few cannonballs all around where you think a fish or power-up will go. You'll be more likely to hit it.
• Keep shooting even when nothing is on the screen!
• Keep your mouse in the game box so you don't accidentally go to a shop or something >.>
• Learn the keybindings (1, 2, 3 & 4) for the power-ups and use the keyboard when you need to use a power-up! It's much, much faster and that way you can keep shooting.
• Terminator is nice at the start of the later waves - just spray and get rid of most of the enemies quickly!
• Use up all your revivers when you think you're going to die.

Thank you!!

You're welcome. c: Let me know how you go!

I will keep you posted :) Do I have to hit a certain score to get the last achievement? I have won 10 games out of 15 but am having problems getting any higher lol

I think you just need to beat level 15. I don't know if there's a specific number of enemies per level. /goes to play a game or 2 to get a rough points guide

Edit: Died at level 13 with 245 points

Edit 2: I think you need a bit above 350 to get to beat level 15. :) Seems consistent.

I will try your strategy this afternoon. I have never made it past level 11 lol