I couldn't get pass the second screen(the one with the bug), I clicked everything and press all keys I could think of, nothing...
Hoo, see first we need to go to the flower and we have to press E to pickup the weapon which then can be shown in the inventory and if we wanna attack the bug then we need to press the weapon icon in the inventory that we wanna equip and then press Q in order to attack the bug
All this I have instructed in the instructions tab onces try it buddy
I'm sure this time you can and thankyou for checking buddy