The Blambow excels in almost everything, being effective against large crowds of zombies, and as a good ranged weapon for stunning psychopaths, doing good damage quickly. Its drawback is its limited amount of arrows, demanding that the player stock up for extended use.
A fast way to earn prestige points with this weapon would be to fire it at the entrance to a different area of Fortune City. Zombies often cluster up in large numbers near entrances/exits of different locations in the game, so using the Blambow this way will not only give a hefty sum of PP, but also clear the area quickly for you if you need to get somewhere fast or if you are escorting Survivors.
Some great places to find Dynamite and Bows and Arrows in a close area are as follows. In the Food Court, two Bows are on top of the castle restaurant and one Stick of Dynamite is there too. The other Stick of Dynamite is in the maintenance room across the Food Court. Also, in the Royal Flush Plaza, in The Chieftain's Hut (R113), there are two Bows and two Sticks of Dynamite are on top of a palm tree that can be reached from the second floor.
Unlike the Bow and Arrow, the Blambow has a limited range, as it will explode after having traveled a certain distance, due to the fact the arrows have dynamite on them.
The Blambow is likely a reference to the Rambo series of movies, where the main character John Rambo uses a bow with explosive-tipped arrows as his signature weapon. The naming of the weapon makes this seem all the more likely, as it even sounds like Rambo.
The Blambow could also be a reference to The Dukes of Hazzard, an American television series that originally aired on the CBS television network from 1979 to 1985. The main characters Bo and Luke Duke are on probation so instead of using firearms they often use a compound bow tipped with dynamite.
Another possible reference is to Gears of War. The Torque Bow fires an Explosive Arrow that penetrates an enemy and explodes.
In the Beta version of Dead Rising 2, the Blambow had 20 Arrows instead of 10. The reason might be that the Blambow could be seen to be overpowered if it had 20 arrows, so it was changed to 10 instead.
A similar weapon was used in two classic Looney Tunes shorts Horse Hare and Tom Tom Tomcat.