Math Hero - Minimalist Puzzle

Cool concept to kill 2-3 hours on, with a LOT of bad design decisions and a flat difficulty curve that never picks up. 1. It should be a crime to make a game as simplistic as this not have mouse-only controls. Not only that but the game has the audacity to suggest using arrow keys, spacebar, AND the mouse. Put your hands on those keys. Do you realize you would need THREE hands for that? Thank god WASD input is also accepted. 2. You must solve every level under a limited number of moves but this is never explained or mention and you will be seemingly randomly failing some levels until you find it out. 3. Levels have a timer as well. In most cases it's like five minutes which is comfortable enough to not care about it. Some levels don't have a timer at all. But then one level has sixty seconds for instance. Like... Why? It displays a game over screen, you click the Restart button, and continue staring at the same level still looking for the solution (which you then do in mere seconds). It's basically a minor distraction once per minute. Just why? 4. The bad part: some levels are "Dark". When you start such level the game pauses itself for 15..25 seconds, then removes visibility …

A short game with 50 levels of math puzzles and only one solution for each level. I enjoyed it although the game is short and only requires basic addition and subtraction mechanism.

The rules are never explained. I've played for 20 minutes and still don't know what I'm doing. I'm done. If there were a tutorial, or even if there was a block of text that explained the rules it'd be better. I would not recommend this game.

A relatively relaxing puzzle game .... however, why does it not show up in my completionist showcase? No matter what I try?

A seemingly simple but very challenging puzzle.

Game rules: Moving from square with X to the square with Y will get you X<sign>Y (Sign = + or - you have before the move). Games has certain limitations: 1) To get the first (X) number you have to move from your current position - you can`t use the number on the curent square. I can understand that mechanic - move and get a number. I can accept that use can only work with 2 numbers 2) If after the addition/subtraction you will get the number that is not present on the board you will lose and explode. Yes, those limitations are the part of game mechanic and can work. But why there are no options to turn off moves number and level timer? Descriptions says "relaxing puzzle game with simple mechanics.". Are move/time limits are part of relaxing puzzle? And does the game have to say "DEFEAT" after level is lost?