Interesting concept! I like the dinosaurs a lot, cute graphics and even fun facts too (thats a level of dedication that most people don't do). Dinos are really hard to draw and definitely kudos for drawing them soo nicely. Music selection is nice and matches the game a lot, which is super good.
For the gameplay, I felt it's a bit too simple currently, basically, there isn't much to do except spam attack and just upgrade attack. It's a quick win for sure, just it doesn't feel like battling a dino with your bare hands. Also, I think the levels are coming so quickly that the casino sort of loses its purpose in the game. I think the intention is to use that as the clutch for gaining enough levels to beat the game, but given the current balancing, it's just not worth it at the moment. A minor thing is that it would be best if the player could also use the mouse to click on the map to go there. Feels kinda weird that you can only move by the keyboard. It's just some QoL that players would really thank you for that.
Anyway, still its hell of a job making this game, so good job and keep up the good work!