I really liked it; each time has its own game mechanic, it's own level design, his own art! And not only we are travelling in the in_game time but also travelling in the history of video game's making: Graphics become more detailed as we progress in the age, it appears even in small things like hearts wich become more detailed with shading etc! Just one things I didn't like: music. The music you have chosen is fast and fast looped music becomes easily repetitive and annoying... However, It seems that the game in worked with time and heart, and there is a lot of work obviously, it is not easy to match all this mechanics... I definitely love it; it worth some development for a final version not only for a jam. Congratulation, it is until now my favorite of this jam!