This was a great game to experience because of its twisted way to control the square. Graphics are very simple but I don't care for games like these whose aim is to make the player user their brain and skills to pass levels. The music is very relaxing and I am still running the game despite beating it three times in a row (I wanted to figure out why last two medals didn't unlock and I will explain that later), because it has the charm of those tracks perfect for a long, tiring day. It's a balm for the mind.
I wrote down all keys for almost all levels, except level 20 which I used the cheatsheet because I couldn't figure out the correct input for "left" and "right". The real level I found truly hellish at the beginning was level 19, the hardest due to the initial slow learning curve for the concept of "toggling" controls. Medals are pretty straightforward to get but two of them might not unlock ("Mastered" only unlocks after unlocking other medals, but one in particular might be tricky to unlock if you don't pay attention to the game).
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The medal I am referring to is "Best eyes in business" which says to collect all hidden collectibles. Easy peasy since they can be collected with relative ease when completing levels, they are found in accessible areas of the levels, BUT there is one single collectible that can easily be forgotten if one is impatient to start playing. That's the one at the beginning of the game where you see the writing "Uncontrollable", the collectible is in the second "O" of the word. You can see it here in this screenshot I took, the location of the collectible is shown with the blue arrow:
https://www.newgrounds.com/dump/item/6d9e0c27ed3b31a94edc1bc18afc4ad3
I liked this funny element because it tricked me XD
Originally I thought the last two medals didn't unlock because of the different simulator (in some games I got medals with Ruffle but not NG Player and viceversa), but I was proven wrong until I noticed the collectible in the "O". Unlocking it, allowed me to unlock the last medal as consequence.
Some tips for level 19:
level 19 is the hardest level because of the learning curve of toggle concept. To pass this level you have to toggle arrow key controls, but initially it's easy to get lost because you can be confused by movements and sudden stops if you click a second time. To master this I suggest to experiment a little with the first platform. If you click the left arrow, the square will move to the left but if you click a second time the left arrow, the square will stop moving. If you click up arrow to jump, the square will jump and if you click a second time the up arrow, it will stop jumping. Same with right arrow, and the same basic concept extends to movement combination.
This means that if you move to the right and jump at the same time, the square will move to the right AND jump at the same time until you click a second time right arrow and up arrow to stop it (it doesn't matter the order, you can click up first and right arrow then). This is the trickiest part to master this level, so my suggestion is to make baby steps. What do I mean? I mean move first (first click) then stop (second click), jump first (first click) then stop (second click). Gradually with lots of trials and errors you will master the timing and the space to jump over the spikes. The more you try, the more clear this suggestion of mine will be and the easier level 19 will become. In fact it has become my favourite level after figuring out toggle. If you have to do a movement combination such as movement + jump to cross a spike, my advice is move and jump (after finding the right spot and time to do it), then after jumping over the spike click immediately the movement key (left or right depending where you are in the level) a second time to stop the movement and then click a second time up arrow to stop the jump. This way you will be able to take your time in order to find the right spot and timing for the next movement + jump combo. Prioritize always the left/right key when stopping first because you will hit the spike as the square is toggled to keep moving until you stop the command.
I don't know if this is clear, but I hope it will help those who still struggle with level 19.
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Well, nice job with this game, I truly liked it and I will replay it again because I had fun. Keep it up and have a great day!