Good idea i think thats the best payment scheme, how much are you planning to sell ad free for?

Hope everything goes well with Game development and keep commenting on this post if you want anything else done or have any questions

also when you fail the level don't make the objects reset let them stay in place and only reset when you switch levels

I have experience coding however wouldn't be able to help on the graphics side unfortunately.

try indieCity, Indievania, ImpulseDriven and LittleIndie there not the most luxurious but you get a good chunk of money and shouldnt have to put your game on there website

Will you make it for PC because there is a wider audience and more stores to sell to.

try and aim for websites that will take money when game reaches a certain profit.

Just trying now to get like 10 different tools you can use and then start making obstacles to make the game harder and maybe make like 3 different levels for early alpha version!

I would recommend for natural obstacles clumps of rock or dirt that players would be unable to place "tools" on and that the ball would be unable to pass.

Also Happy Birthday!

The free assets i can find are not high quality for a paid game in my opinion if you have a budget in mind i could see what i could find with your price range in mind.

I will have a look but i suggest using assets from the same author that way they should have the same aesthetic.

you should just need a global variable called open that starts at 0, and when a key is picked up assign it to 1 and when a door is opened assign it back to 0, this would allow you to have multiple keys and doors, to expand on this you could have different coloured doors with different keys but save that for the long run.

if you need help with that i'm happy to give advice and help were i can.