Very nice job, fairly fun to play. With the retro style I guess it's a bit like "Pitfall! meets Flappy Bird", but more interesting than the latter thanks to the collectibles and power-ups. The magnet is a really useful power-up, although currently there's not much competition for it, I recon. Sometimes passing the hurdles takes some good predicting skills. For example, if you jump over a tall wall with a long double jump that makes you land close to the next wall, and if after that come many lower walls with small gaps, you are pretty much screwed, since you can't jump fast enough to clear them.
If you're interested, your game would be welcome in our contest, the Game Development World Championship!