Here's why:
* Porunga has a wider variety of items: While Shenron offers mostly basic items like health and ki increases, Porunga grants access to special items like:
* Super Saiyan Transformation: This grants the chosen character the Super Saiyan transformation.
* Ultimate Move: Allows the chosen character to learn an ultimate move.
* Item Collection: This lets you collect a large amount of the basic items that Shenron usually gives.
* Porunga offers more powerful items: Porunga's items, especially the Super Saiyan Transformation and Ultimate Move, are considered significantly more powerful than Shenron's.
* Porunga requires fewer dragon balls: You only need 5 Dragon Balls to summon Porunga, whereas Shenron requires 7.
However, it's important to note:
* You can only use Porunga once: You have to collect all 7 Dragon Balls again to use Porunga again.
* Shenron is available more often: You can use Shenron as many times as you like after collecting 7 Dragon Balls each time.
So, if you're looking for the most powerful items, Porunga is the better choice. However, if you need items frequently, Shenron is more accessible.