This is a cute little game! The idea is very good, and the execution as well with regards for the 48 hour time period. There were some small problems however, such as the magnet polarity acting sometimes when I didn't want it to, and sometimes not acting at all (these were mostly in small bursts so it didn't really take away from the experience as a whole).
I didn't get further than level 3 unfortunately, that 3rd lava pit is hard to get past :'(