There are two challenges that pertain to training mode. One is to get a 10 combo, and the other is to get a combined 400 combo. Here's an easy way to get them both.
1. Pick any character, any opponent, any stage (Flat stages are probably easier)
2. Spawn max # of Smart Bombs , i think it's 5. Make sure they're right next to your opponent
3. Pick one up, throw it. All smart bombs should go off, giving you an around 100 combo
Sorry if it was a little obvious .. just trying to help.
1. Pick any character, any opponent, any stage (Flat stages are probably easier)
2. Spawn max # of Smart Bombs , i think it's 5. Make sure they're right next to your opponent
3. Pick one up, throw it. All smart bombs should go off, giving you an around 100 combo
Sorry if it was a little obvious .. just trying to help.