itch.io

I agree on having a 5th slot, but want to mention that Bob's Brain is a good alternative to Cube of Meat. It's cheaper and kills enemies, so you can save more hearts and defend with them for a while until you  get all of your Lil' Chads. At that point, you just start placing rows of your other units and use Bob as a cheaper, explosive meat shield whenever you need one

I'm only on my first playthrough, but as a PvZ fan, I LOVE this game so far. I have some critiques, though:

• There doesn't seem to be a set hotkey for either the pills or canceling an action. While you can re-press the hotkey you used to get out of an action, and the mouse is there to use the pills, this all makes collecting coins and hearts more of a hassle. Having hotkeys for these would be a great quality-of-life change
• Maybe it's because I haven't started experimenting with them yet, but there isn't much of a reason to use any of the other active items other than Candy Heart. The babies themselves are strong enough to handle vicious waves without active items, and the Candy Heart gives you a strong start to support that notion Edit: of all the items, Notched Pickaxe has been saving me a lot. Candy Heart is still great, but I wanted to retract my statement on it being "better" than the other items. It was kind of a farfetched statement anyway
• Bob's Brain (contrary to their usual appearance) is kind of cracked. Potato Mine was already a staple of most PvZ strategies, but the increased AoE combined with how many hearts you save up relative to how much you actually need lets Bob's Brain launch you ahead of where you should be. Instead being mid-construction by the time the first wave comes in, you may already be trying to make space to spam more of your best tower. Reducing the AoE and making it cost a little more (I'd say 50 Hearts) would reduce how effective it is. Though, this isn't considering the other difficulties/challenges, and my experience with this game is limited

Again, I love this game so far. you combine so many elements of PvZ 1 and 2, and renovated the mechanics, to make this game so much fun to play. These are just some suggestions I have on first glance