Simple and Fun to play while drinking a tea :) 

You already know about the issues with collisions, so I won't bother You with repeating that. 

But I would like to suggest to make a character move/jump/fall faster :)

Keep Up the Great Work! (And please check out my entry too).

It's Pikachu running through Super Mario Bros 1 levels. I won't comment on whether making a fangame like this is a good idea, but I will note that it felt kind of like an old romhack or bootleg cartridge.

I played on PC, and honestly the controls didn't work very well with a mouse. I found it really awkward to time jumps, and often moved instead of jumping or vice versa. I did get used to it enough to finish the first level but it never really felt solid.

I do, however, see how the controls could work well with a touchscreen. I just wasn't able to try this myself.

There were some issues with collision. Some of the obstacles I just passed through, and others I kind of hit them but was able to sort of push through the edge. It's hard to describe. I also wish there was more feedback in the form of effects when picking up a star or hitting an enemy.

Interesting way to do platforming controls~ would work well on a phone for sure :D  Make a new character and keep working on it! Nintendo is notorious for cease and desist letters hehe.  Please check out my entry when you can :D

The basic things are working. Mouse control for a Jump&Run feels unusual, but I got Pikachu at least to level 2 \o/ You used a Game Engine for this - or is it your own engine? The collision detection isn't perfect, but with some trying I figured out how to get around it.

As others were mentioning: It feels too slow and unresponsive. And be careful with using such iconic IP. To a certain degree "fanart" might be accepted, but as I got it, you haven't created the art assets by your own?

Cool attempt. Feels a tad slow, not sure if it was just my browser.

Nice platformer! Are you sure you're allowed to use Nintendo's IP though?