Maybe 200k during the holidays and 600k lifetime. Hell it probably won't pass 500k.
90% of the predictions I see in this thread are so farfetched that my brain is physically in pain. There's not a chance in hell this passes 2 million let alone 4 million. Donkey Kong is most likely going to just scrape pass 1.5 million when it's done selling so to think Toad will do any better is just downright foolish.
PSN: extremeM
PlayStation Vita Japanese Software Sales (Media Create Physical/ Famitsu Digital)