+\C{loopy} \i{Loopy}
+
+\cfg{winhelp-topic}{games.loopy}
+
+You are given a grid of dots. Your aim is to draw a single unbroken
+loop from dot to dot within the grid.
+
+Some of the square spaces between the dots contain numbers. These
+numbers indicate how many of the four edges of that square are part
+of the loop. The loop you draw must correctly satisfy all of these
+clues to be considered a correct solution.
+
+Credit for this puzzle goes to \i{Nikoli} \k{nikoli-loopy}.
+
+Loopy was contributed to this collection by Mike Pinna.
+
+\B{nikoli-loopy}
+\W{http://www.nikoli.co.jp/puzzles/3/index-e.htm}\cw{http://www.nikoli.co.jp/puzzles/3/index-e.htm}
+(beware of Flash)
+
+\H{loopy-controls} \i{Loopy controls}
+
+\IM{Loopy controls} controls, for Loopy
+
+Click the left mouse button between two dots to add a line segment
+connecting them. Click again to remove that line segment.
+
+If you are sure that a particular line segment is \e{not} part of
+the loop, you can click the right mouse button to add a small cross
+indicating this. Click again to remove the cross.
+
+(All the actions described in \k{common-actions} are also available.)
+
+\H{loopy-parameters} \I{parameters, for Loopy}Loopy parameters
+
+These parameters are available from the \q{Custom...} option on the
+\q{Type} menu.
+
+\dt \e{Width}, \e{Height}
+
+\dd Size of grid in squares.
+
+\dt \e{Recursion depth}
+
+\dd Determines how much guesswork and backtracking you will need to
+do to solve the puzzle. When this is set to zero (as it is for all
+of the \q{Easy} options in the menu), you should always be able to
+deduce the state of an edge without having to guess. If you increase
+it, you will have to guess more and more.
+
+\lcont{
+
+Setting a high value for this option is liable to consume a lot of
+CPU time and memory. Be warned!
+
+}
+
+
+\C{inertia} \i{Inertia}
+
+\cfg{winhelp-topic}{games.inertia}
+
+You are a small green ball sitting in a grid full of obstacles. Your
+aim is to collect all the gems without running into any mines.
+
+You can move the ball in any orthogonal \e{or diagonal} direction.
+Once the ball starts moving, it will continue until something stops
+it. A wall directly in its path will stop it (but if it is moving
+diagonally, it will move through a diagonal gap between two other
+walls without stopping). Also, some of the squares are \q{stops};
+when the ball moves on to a stop, it will stop moving no matter what
+direction it was going in. Gems do \e{not} stop the ball; it picks
+them up and keeps on going.
+
+Running into a mine is fatal. Even if you picked up the last gem in
+the same move which then hit a mine, the game will count you as dead
+rather than victorious.
+
+This game was originally implemented for Windows by Ben Olmstead
+\k{bem}, who was kind enough to release his source code on request
+so that it could be re-implemented for this collection.
+
+\B{bem} \W{http://xn13.com/}\cw{http://xn13.com/}
+
+\H{inertia-controls} \i{Inertia controls}
+
+\IM{Inertia controls} controls, for Inertia
+\IM{Inertia controls} keys, for Inertia
+\IM{Inertia controls} shortcuts (keyboard), for Inertia
+
+You can move the ball in any of the eight directions using the
+numeric keypad. Alternatively, if you click the left mouse button on
+the grid, the ball will begin a move in the general direction of
+where you clicked.
+
+All the actions described in \k{common-actions} are also available.
+In particular, if you do run into a mine and die, you can use the
+Undo function and resume playing from before the fatal move. The
+game will keep track of the number of times you have done this.
+
+\H{inertia-parameters} \I{parameters, for Inertia}Inertia parameters
+
+These parameters are available from the \q{Custom...} option on the
+\q{Type} menu.
+
+\dt \e{Width}, \e{Height}
+
+\dd Size of grid in squares.
+
+