PhD

How to play: Use your arrow keys to move the bricks. When two bricks of the same type touch, they merge into one!
However, your ideas and experiments may not always work — they may produce the sticky garbage, which is resistant to moves. Two garbage bricks vanish when they touch. You will stop producing garbage after getting a paper (except for one more piece to help you eliminate any existing garbage).
A relationship upgrades any brick it touches for the first time. The brick shows the number of times you have benefited from it. When the 10-sec relationship ends, it will become a break-up (or garbage if you didn't use it), which downgrades bricks until you have repaid the benefits.