Wow this is such great feedback. Thank you so much for playing! It seems like you keyed into some problems I recognized as well. Perhaps some rethinking of the frog tongue attack would help (do a ray cast before attacking to see if there is a wall between him and the player).
Im glad that grinding out weapon upgrades was something you realized you could do! Thats a great discovery.
In the next version, I've also toned down the 'hit punch' which should help with the difficulty of the frogs.
Thank you again for the critique and comments. I think every point of yours is valid! I may release this game in a fuller polished form on steam and itch for $7. I had a lot of fun with this project and I think its got the basis for something cool, it just needs a little more work haha.