Level 14

Difficulty

 * Your main problem is the cats. Up to 5 can be on screen, 75 are required to shoot down, come in 6 different variants(Costumes 1-6) and can be harder.
 * New give sunflower can give you more sun without a need of 15 sunflowers.
 * 500 sun is very enough

Strategy

 * Plant Give Sunflowers and not sunflowers since they give more sun and suitable for night levels.
 * Remember, no cats give sun in this manner so place wall nuts and rely on the give sunflowers to avoid any plant scratch.