This gets gets pretty boring, pretty quickly.
The overall game concept sounds good on paper, but just does not work in practice here. Your description talks about pokemon headed towards the city to create destruction... which sounds awesome. Instead, we get a bland factory backdrop tosee some pokemon sprites with R2D2's head slowly creeping by.... and I do mean slowly.
The concept of catching all pokemon is great..... but we only get 5: Squirtle, Bulbasaur, Charmander, Pikachu, and Chikorita. All 5 of these just move slowly and have no animation. Also, their hitboxes (especially the grass types) are a little finnicky at times.
This was a good concept that just fell quite a bit short of expectations. The lack of sound, movement, and the slow, easy pace killed this one.