“When we looked at the design of the 3DS XL, we had to look at various factors. One was battery life. One was the overall size of the unit. And we had to make some trade-offs. The choice, if we were going to include the second analog stick, was to reduce the size of the batteries or make the unit much bigger. What we wanted to do was have a bigger screen in comparison with the overall size of the system, so we had various discussions and had to make trade-offs, and this is the outcome.” - Iwata