Blend the berries in a 5 cup blender until they are pureed.
Add in the gelatin and sugar, blend again.
Pour in the hot water to fill the blender to the 5 cup mark, blend until mixed well. Be careful it might try to pop the top off the blender so be sure to watch it close.
Pour blended mixture into a 9 by 13 inch pan or a smaller square pan for thicker jello squares and chill until firm.
Cut into squares or use cookie cutters to make interesting shapes.