It is pretty neat at the end of the game though to be able to fly around in space forever (so long as you're careful), going through black holes pretending to be the Enterprise.
I think I have to take back what I said earlier. It's a complete and well-done game, but it's not fun. It's like the author looked at Learn 2 Fly 3 and said "this needs slower rockets and more obstacles." I want the badge, but I'm not enjoying it =(
It's a bit of a problem that I can't shout in midair. The only time I'd want to use it is when I jump into the middle of a swath of guards and would take damage anyway, but they always start shooting me before I land on the ground, so the invulnerability doesn't matter because I'm already getting shot. Slashing is almost strictly better ime.
My personal ranking system for Quick Sketching, based on chaining Muse cards for infinite looping: Muse > Apple Pie > Meditation > Rest/Sketching/Baking/Inspiration > Curiosity (to get Sketching) > red/blue cards > yellow cards > healing other than Apple Pie. Once you have enough Muse/Apple Pie (I did when about 20% of my deck was Muse), you can go infinite and use Gore whenever you draw it. Then next turn do nigh-infinite damage.
Although the game advises against it, you can get away with tyranny scott-free. Once you level up, you can never level down again, and rebellion doesn't actually take away from your gold either. So although you can get 21 taxes in before people start revolting, you can actually get the most value between each map by leveling up and then taxing everyone until they all refuse to pay you.
Make that the best strategy I've found for every level. Another example: (23/15): 4, 4, 2, 4, 2, 2, 3, 2. 23 - 15 = 8, and you can't add 3 to any of the other numbers to get 8, so lock 3. But you can add different combinations of 4 or 2 to get 8, so you're done here for now. Move on to another row/column.
The best strategy I've found for completing endless puzzles is: for a given row/column, click on the edge-square to see the remaining difference. Then look at the row/column and lock the squares that can't be added up to form that difference. E.g. (51/47): 8, 19, 4, 12, 8 - the only number you can subtract is 4, so remove it. Then move onto the next. Lock any rows/columns you solve, and repeat.
Oh! Lines are supposed to block each other. For me they didn't. I saw someone had that a problem with that in Firefox, but I'm playing in Chrome and still have that problem.
There are more states than just "on" and "off", but it's not clear to me how to reach them. Especially in the level with 2 lines running to a single box that overloads within a few frames of clicking the button. Also holy smokes, 35 levels?! This is not a 5-minute game.
I'm up into the expert bandaids, and I actually like this game. Enough to keep coming back for hours more deaths with occasional success. But there are 2 things frustrate me to no end, and which would stop me from buying Super Meat Boy: (1) the way meat boy's hitbox is bigger than his sprite, so that I've died countless times without actually touching the things that killed me (and even died to salt beneath me after starting my jump), and (2) the way I can't see meat boy, or some of the platforms in the forest. It's like he's camouflaged with the background.
 "No Touch"){kind=icon}
 "Utopian Mining"){kind=icon}
 "Into Space 2"){kind=icon}
 "Code Red"){kind=icon}
 "Aisleen"){kind=icon}
 "Divide"){kind=icon}
 "Frozen Islands"){kind=icon}
 "oO"){kind=icon}
 "Rullo"){kind=icon}
 "Circuit"){kind=icon}
 "Meat Boy (map pack)"){kind=icon}
 "Line Game"){kind=icon}
approaching the cat and waiting for the dot dot dot to finish should drop the object.