I just love how the Japanese name games with the equivalent of "Let's". This one translates to "Let's make (or build, if you'd like a better English term) a pro baseball team". I really think the marketing teams in the west need to get on this thing, so I could play my contra as Let's shoot aliens, and such.
edit: Just thought I'd add that the Japanese loves this volitional form. A fast-food place I used to frequent while living there, had this jingle that ran in the background with the lyrics: "なかって、御飯を食べよう。" over and over again, which translated to "Let's go to Nakau, and eat food.", which in my mind has to be the best jingle ever. But the point was that the Japanese love the volitional.