Hi, you've made a cool game. I played up to 1200 points.
I like the idea of enhancing your pet with DNA. I'm not a fan of Pokémon, but I do like the game Spore. The less pre-defined the game is, the better for me.
The colors and graphics were minimalist, which suited the cute style well. This made it easy to distinguish between different biomes. The controls were smooth and easy to understand.
The battle system is based on the same principles as Pokémon. I'm not a fan myself, but it works.
Overall, a good project.