V1.5 update rolled out!

Updated graphics:
- Sprites;
- Cutscenes;
- Achievements images.

New Challenge modes, among which are these:
- Toughened battles;
- Summoning of Ubrencha, Rinka's blade;
- Time attack.

mode updated:
- New battle added;
- Game restart gimmick removed.

Also:
- New achievements;
- Various bugfixes.