Things i remember from the game:

- Starting scene has a meteor falling on a nearby hill of the players house

- You play as a kid that gets transported(?) to another world

- You are given a phone

- It might be japanese RPG but in english

- It is definitely NOT Pokemon or Undertale

- You battle Monsters and they give you their number

- You call monsters to fight for you

- It might be a snes or nes or a gameboy but definitely not NDS game cause its old game with old graphics almost pixelated

- I dont remember if you can choose gender but i can remember playing as a male boy

- the games is 2D and in third person like Pokemon

- Unlike Pokemon with its colorful graphics this has darker mood

- No MP

- Couch game for sure

There is a scene i vaguely remember. The boy is in a forest and is divided by a river into four and have to puzzle way through that forest while encountering and battling monsters

The single thing that im sure about is the use of phones to phone in monsters you encounter to fight for you.

The ending was like you get transported back to your modern home with your monster companions gone but the phone stays(?).