Previous post with details here : https://connect.unity.com/p/grind-em-up-1
All new stuff and updates are there.
All graphics(characters, weapons, pick-ups, levels, menu)/music was made by me in Abobe Illustrator/FL Studio 12, all code written by me. The project was completed in 8 months.
Optimization: Reduced game size from 420 MB to 90, optimized objects destruction ant particle system spritesheets. All texures have good compression so the game size is really small. Still need optimization with Instantiate/Destroy functions. Laptop specs: Intel(R) Core i7-2620M CPU 2.7Ghz, 8 Gb RAM, 1Gb VRAM, 512*2 GB HDD.
Overall the game is finished. There are no bugs, no lagging, no NullReferenceExeption in console(editor and runtime).