Good
- transition between lower screen and top screen when controlling the two duos is fast and seamless. Unlike in Bowser's inside story where the transition takes a few seconds
- the battles make use of all four buttons which makes it much more challenging, especially the Bros attack.
- being able to separate the past Mario Brothers and the present Mario Brothers, and control them separately is pretty interesting.
- the partner battle mechanics and puzzles were really creative. Having to hit extra buttons to perform attacks made the gameplay more challenging.
- the dialogue is charming and funny as with all the other Mario and Luigi games.
- enemies are very creative.
Bad
- having to buy bros attack means they aren't readily available for me to use if I run out while in the past world. I would have to go back into the future to buy it in a shop.
- too much lag before the hammer counter. makes it hard to time the counter
- shadows are difficult to see during battles making it difficult to tell which brother the attack is going for.
- certain parts of the level is hard to tell whether it is on a higher level or lower level. This probably has to do with the limitations of the DS hardware.