Yeah honestly the movement was difficult for us at the start too. We considered keeping it just one button (change direction) but ended up going with some speed adjustment stuff to make it more skill based.
Thanks for trying the game out! :)
Update, I played awhile more and managed to beat it :)
I think the wandering healer is probably the most important part of the game, so I just kept making sure I had full health as I progressed to take down the other enemies. Once I did that it was easier for me to handle and I had an overflow of cacti picked up haha
I think you did a great job, it was a really fun game and the duration was just nice too

I really like the concept, I think the mechanics are simple enough such that I was able to understand and start strategizing how to play very quickly. I really like the art as well, it's very pretty!
Difficulty wise, I do think it's really hard to manage your resources during the game. At some point I wasn't able to pick up all the cacti drops and deal with the enemies at the same time. The ramp up in difficulty from the start of the game onwards was quite steep as well.
Overall really fun game, I spent some time trying to improve my route, and one strategy I came up with was to immediately reduce my lines at the start hahaha