Thanks, Edmar! That is so awesome to hear. I feel the same way, I hope I can make a multiplayer version someday.
Agreed that I need to teach. This has also been a common comment after I increased the difficulty and added some mechanics. I should have added a difficulty level and a training mode before updating, but I was in a hurry to push out the changes. As a result, newer players are welcomed with a nasty beatdown. I will change this soon.