Hi! Thanks for playing the game and comment!! :D I appreciate your help. About the attack, is because we(PonkiDev and Creppy250) couldn't make a better game or fix bugs. This is our first jam and make a game in 9 days is difficult for us. We finished the game 30 minutes before time was up.
One tip I can give you is to hold the attack button before the enemy gets close and release it only when you've already eliminated it. Also, I owe you an apology, because it is not obligatory to kill ALL the bugs. You can skip 1 or 3 in a level and nothing will happen. Just make sure you grab ALL the green potions that are "hidden" in the level. These are essential, otherwise you won't have enough M.P at the end of the level. There are enemies like the frog, the muscle beetle and the bee that CANNOT be killed.
Bottom line: If an enemy is hard for you, ignore it and find all the potions in the level. If you get stuck, hit the "retry" button or just skip the level.
Thanks for your comment, I REALLY appreciate constructive criticism as this experience of making a game in 9 days is challenging. :)