I guess I could plug my game here, too. ;)
Check it out: Grapple
Haven't gotten around to try many games, and the couple of games I tried were sadly unfinished...
Now, as everyone, I'll use this to to self-promote myself... But I have to mention that it has a dog you can pet https://gjdz.itch.io/lost-little-light

Everyone here's using this as a chance to self-promo so here's my team's game. There's some polishing I wish I had time for but I'm still very proud of it! https://itch.io/jam/gmtk-2019/rate/461132
Outside of that though, I really love this one's concept. It's incredibly creative and charming. https://itch.io/jam/gmtk-2019/rate/461923
https://gentoogames.itch.io/bathroom-buckle-up
This one is pretty darn funny. You'll get a laugh!
After the obligatory self promotion: BOB DOES NOT CARE
I loved the style and found really enterteining this one: Katame Ninja
I also liked : Westkiller
Hey! I was developing a game which you might like!
https://bitron.itch.io/one-arrow-colosseum
I was in the team of development so your decision is key here. Hope you find it fun and enjoy it as much as we did.
Of course I'm a fan of the one I worked on, https://ejbiernacki.itch.io/one-moment-of-protection.
I have also found these 2 to be pretty fun!
Enjoying the thread, there are some great games in here!
Shameless self promotion - https://itch.io/jam/gmtk-2019/rate/462486
(Warning: do not click link if allergic to bees)
Well I guess I'll promote my entry, Dead Command - https://olinkalex.itch.io/dead-command 
Self-Promo: https://itch.io/jam/gmtk-2019/rate/464013
The real winner of this year's jam: https://itch.io/jam/gmtk-2019/rate/462798
https://vcp.itch.io/only-one-pair-of-platforms
This is my game..... it's a personal challenge from me. I dare anyone who tries it to get a score above 50.
Okay....self promotion over. I'm definitely going to check out the other entries....but life is kind of coming in the way at this moment 😂
Of course, I have to self promote:
https://bobgames1215.itch.io/the-only-platform
It's a platform with only one platform. I would appreciate any feedback and I hope you like it.
I also found this game that I think is really fun:
I made a game called Cyber Ball. You have one shot to shoot a ball to its goal whilst avoiding the obstacles.
https://itch.io/jam/gmtk-2019/rate/461837
I recommend playing the downloadable .exe rather than the in-browser player as the post-processing doesn't work in the browser.
hey dude check my game :) https://itch.io/jam/gmtk-2019/rate/134733
Not sure if it's good, but please try mine! I'd love to hear some feedback on it!
https://bigfraudbigfraud.itch.io/gmtkjam2019