SD Gundam Gaiden: Knight Gundam Monogatari 2 is a really accessible, streamlined and speedy RPG. You don't need to have played the first, it's generous in terms of how you get full replenishes every time you level up (you even get an item early on that keeps your magic user replenished), and it gives you enough tools to navigate your way through dungeons, the overworld and battles without you ever really needing to consult a guide, whilst also rewarding you for exploration. You don't need to ever grind out battles and level up for dedicated periods, because you will always have enough in your arsenal at any one time to deal with enemies and bosses. Plus it has a card battle minigame.