Yep, this is one of the winning ideas here.

I never thought a metroid maker would work out until i played this, this was really really awesome dude.  I love how I still have to return with my map pieces making it still a metroid-vania to its core with the back tracking. I would rephrase your summary to "A metroidvania without having to remember locations" because it technically can be interconnected if I make it interconnected. I'm going to show my roommate when he gets home from work, seriously great job! You should really take this idea farther.

And no complaints considering the great quality and amount of time you were given to make this.

Fantastic game with a great mechanic! However, I find it hard to judge how this game fits with the jam's theme 'Genre WITHOUT Mechanic'. I understand its a metroidvania with map editing but, to me at least, still felt like a classic metroidvania, mechanics and all. Still, great job on the game itself!

https://itch.io/jam/gmtk-2018/rate/298998

GREAT idea and execution. would've loved more variety in the enemy types but for a game made in 48 hours it's fantastic.

Rooms repeat quite often in this game, but that's my fault for placing them down often. Seriously, this is freaking fun.

Super super cool! Like holy shit dude! I want to see more of this game! One thing I thought of while playing that could add to the strategy is having different biomes that change how the rooms work in different parts of the map, like the floors are icy near the top, its super hot and you take damage over time while you're in the room at the bottom, its filled with water, or something like that.

This is great, Amazing Idea! Seriously impressive that you made this is just 2 days! My only gripe is that the controls are a bit wonky...

Very smart! I love that the healing rooms are one-way entries, forcing the player to plan their map around it. IMO, there should've been fewer rooms overall, so players would need to use all of their pieces in the final stretch. I never saw some of the hardest rooms because I didn't need to use them. But I loved this! 

If you're going to expand on this game in the future, having certain areas have 'hazards' that effect the room tile placed there among other spatial puzzles (like rooms that can rotate with levers) could be really interesting. I think there's still a lot of potential here!

Very fun concept, really had fun with room strategy. 

Rooms as upgrades is quite an interesting idea. Overall, a great game.

Best game I've played in the Jam yet. Good concept executed well. It's a lot of fun to play. It needs tighter controls though. Some rooms seem impossible to get through without taking damage due to the fixed jump height. 

Very fun game, controls are annoying in some places and dropping though floors can be annoying but is a fun idea and game

This is a very very good game! The concept is genius and the design is great.

A couple of points: It took a while for me to figure out that I can shoot blades, and some rooms (even the hard ones) comes down to stay in a corner shooting until everything that move randomly gets destroyed, and then you can move freely through the level.

Seems I am not the only one who actually loved the concept behind this game. The idea is well implemented, and I can see a fully fleshed out game coming from this. Some romos could be designed differently, and it is not intuitive that you can shoot the Blades. These are nitpicks imo.

I think this is the kind of game that would benefit from a online system that compares you efficency (rooms used to beat the game, amount of rooms cleared...) in order to promote the thoughtful placement of rooms and pretty much creating a metroidvania-puzzle game, maybe with user created content. And I feel like this game would beenefit from some kind of upgrade system (I understand why this hasn't been implemented, lack of time being the main reason)

Guess I'rambled around long enough, but i truly would like to see a game that furtherly develops the idea. Congrats to the dev(s) behind this, I'd pay for playing something like this.

Btw, beaten in 11:38

Love the concept! I had issues with my avatar disappearing randomly while I was playing which created difficulty that didn't seem intentional by the designer. Solid game design though!

Uuhhhhh, can I give this game a 6/5?

I beat it in 18:35, and I must say. This game, unlike all the games I have played from this jam, could be turned into a steam game. Not just a kongregate game. Full Steam game. Basically a metroidvania version of VVVVVV.

The only thing that I need from this game is a clear explaination that you can shoot everything (didn't shoot the blades at first) and more of it.

Amazing Idea and really fun gameplay. My only problem is that some hits that I take just seem unavoidable making the game unfair at times 

Best Idea I've seen so far and it was a really fun game to play too!

Pretty creative idea! It still felt like a Metroidvania since I had to think of the best way to get from point  A to B. My only small complaint is some hard rooms you spawn in can occasionally result in guaranteed damage.